Window lock



Oct. 11, 1960 Filed OCT.. 17. 1958 FIG. j.

s. A. JACQUES 2,955,860

WINDOW Loox 2 Sheets-Sheet 1 Oct. 11, 1960 s. A. JACQUES 2,955,860'

WINDOW LOCK Filed Oct. 17, 1958 2 Sheets-Sheet 2 Ffa Z WCE-6M@ CimATTORNEY United States Patent() WINDOW LOCK Stanley A. Jacques, 7009Kittyhawk Ave., Los Angeles, Calif.

Filed Oct. 17, 1958, Ser. No. 767,819

s claims. (cl. ce2- 63) This invention relates to a window lock which isparticularly adapted for use on conventional double hung windows.

lt is an object of my invention to provide a lock of the class describedwhich can be used to lock both windows, regardless of whether they arein closed position or in partially open position. Another object is toprovide a lock which permits either or both of the windows to be movedtoward closed position without releasing the lock and which at all timesprevents movement of the windows toward an opened position.

,A further object of my invention is to provide a lock which becomesmore tightly locked when an attempt is made to move the windows towardan open position.

It is another object of my invention to provide a window lock whichcannot be opened from the outside by the insertion of an object or bysudden movement of the window and which is provided with positive meansfor preventing intentional or accidental unlocking.

It is among the further objects of my invention to provide a lock of theclass described which may also be used for holding windows which tend tofall; which may be used to prevent windows from rattling; which will notmar or damage the windows or window frames Aand which is provided withmeans for simplifying its proper alignment and installation.

It is accordingly among the objects of my invention to provide a windowlock having all of the benets a'nd advantages set forth above and whichis simple to install and operate and which is simple and economical tomanufacture.

My invention also comprises such other objects, advantages andcapabilities as -will later more fully appear and which are inherentlypossessed by my invention.

While I have shown in the accompanying drawings a preferred embodimentof my invention, it should be understood that the same is susceptible ofmodification and change without departing from the spirit of myinvention.

Referring to the drawings,

Fig. l is a perspective view on a reduced scale of my window lock in useon a conventional pair of double hung windows;

Fig. i2 is a side elevational view of my window lock in use and inlocked position, with the radial lines and arcs indicating theeccentricity of the ilange;

Fig. 3 is a sectional view taken on line 3 3 of Fig. 2;

Fig. 4 is a side elevational view similar to Fig. 2, showing theincreased wedging action when the windows are moved;

Fig. 5 is a top plan view taken on line 5-'5 of Fig. 2;

Fig. 6 is a side elevational view of my window lock Ain unlockedposition, with its locked position indicated in dotted lines;

Fig. 7 is a top plan view of the same taken on line 7 7 of Fig. 6.

A preferred embodiment of my Window lock which has been selected toillustrate my invention is adapted to be used on either side of aconventional pair of double hung windows 10 and 11. It comprises asubstantially triangular base 12, which is adapted to be mounted on thehorizontal upper edge of the innermost window 10. A plurality of screws13 or other suitable fastener members are used to secure the base 12 tothe window 10.

Extending vertically upwardly from the base 12 are a pair of spacedparallel arms 14 and 15, between the upper ends of which extends ahorizontally directed shaft 16. A lock member 17 is4 rotatably mountedat one end thereof on the shaft 16. The lock member 17 includes a narrowbody portion 18 which carries at its outer end a substantially widerange 19. The contour of the flange 19 is arcuate and off center withrespect to the shaft 16.

A coil spring 20 surrounds the shaft 16, with one end bearing againstthe arm 14 and the other'end bearing against the body portion 18 of thelock member 17 and normally urging it against the other arm 15.

The upper end of the arm 15 is rounded, but is slightly relieved on theside thereof toward the window 11 to provide a right angular stopportion 21. A stud 22 projects outwardly from one side of the bodyportion 18 of lock member 17 and is directed toward the arm 1'5. Thestud l22 is so disposed that upon rotation of the lock member 17 withrespect to the arm 15, the stud 22 will engage the stop portion 21.

When my lock is not in use, the lock member 17 is rotated away from thewindow 11 to the positionv shown in Fig. 6 of the drawings. The stud 22bears against the unrelieved portion of the arm 15, as shown in Fig. 7of the drawings, with the coil spring 20 being compressed and urging theend of the stud 22 against the side of the arm 15. Both windows 10 and11 are free for movement.

When my lock is to be used, the lock member 17 is rotated toward thewindow 11 to bring the ange 19 into engagement With the sash of -thewindow 11. Rotation of the lock member 17 is continued until the stud`22moves past the stop portion 21 into the relieved portion of the armV 15.The coil spring 20vthen urges the lock member 17 laterally to bring. theside of thev stud 22 into a position adjacent the stop `portion 21. Theparts are then in the position shown in Fig. 2 of the drawings.

The arcuate outer surface of the ange 19 is 01T center with regard tothe shaft 16, the clockwise portion of the flange 19 as shown in thedrawings being an increasingly greater distance from the shaftr16. kThelock member 17 thus acts as a wedge between the window 11 and the shaft16 to press the windows 10 and 11 outwardly against their frames. If anattempt s made to move either windowV 10 or 11 toward open position, theeccentricity or cam action of the lock memberr17 forces the windows 10and 11 farther apart, as shown in Fig. 4 of the drawings. This causesthe window sashes to bear even more tightly against the window framesand the frictional engagement between them makes it impossible to moveeither .or both of the windows 10 and 11. It will be noted that the lockmember 17 is itself light and the locking action is achieved by thefriction between the windows and their frames resulting from the wedgingaction of the lock member 17. y Y

The stud 22 and stop portion 21act to prevent any accidental unlockingof the window lock by a sudden opening movement of the windows whichmight cause the lock member 17 to flip around out of locked position.Such movement is prevented by the engagementbetween the stud 22 and stopportion 21, which can be overcome only by moving the lock member 17laterally against the pressure of the coil spring 20 to move the stud 22around the stop portion 21 so that the lock mem-VI ber 17 is free torotate away from locked position,

It should be notedthat the outer `surface of the ange 19 is smooth, sothat it rollson the sash of the window V11 canbe moved to a partiallyopen position and my lock will stillY function Yin the `same manner asif both windows were closed. It will permit either or both of thewindows to be moved toward closed position, since such movement will notincrease the -wedging action of the lock member 17. movement of eitherofthe windows toward a more open position.V It is thusV possible for theuser to be provided with adequate ventilation and still have security.

My lock issimple to properly install and align,'since the user need onlymove the lock member 1.7Y toward the window 11 with Athe stud 22engaging Vthe vstop portion 21 and the ange 19 engaging the window 11.`This is the proper positionpfor mounting the base 12. In order topreventV loose windows from rattling, the user need only engage mywindow lock and then move either Window slightlytoward open position toincrease the wedging action and force the windows -against the frames toprevent rattling. Windows which tend to fall are held in position, sincetheir falling will vresult in tighter locking.

1. A window llock for double hung windows compris-V Y ing-a base adaptedto be mounted on the upper edge of one of said windows, Va pair ofspaced parallel arms extending vertically upwardly from said base, ashaft extending transversely between and journaled at its opposite endson said arms, a lock member rotatably mounted at one end thereof on saidshaft, Ysaid lock. member being movable laterally on said shaft, theother ,end of said lock memberfhaving a substantially wide flange, theouter edge of said ange being eccentric with respect to said shaft, theupper end of one of said arms being relieved on the side'thereofadjacent the other of said windows, the relieved portion of said armforming at the upper end thereof a substantially right angular stopportion, a stud carried by said lock membernand projecting outwardlyfrom one side thereof, said stud being directed toward the-armY having arelieved portion, a coil spring surrounding saidshafgone endV of saidcoil spring bearing against one of said arms and the other Vend of saidcoil spring bearing against the portion of said lockrnember adjacentsaid shaft, said coil spring normally urging said lock member laterallyon said. shaft toward the arm having a relieved portion, said lockmemberbeing rotatable Ywith respect to saidshaft to move-the Bangethereof into wedging engagement between said shaft` and the other ofsaid windows, the stud on said lock member being urged Yby said coilspring into the .relieved portion of said arm, so that upon re-V ing'abase adapted to be mounted on the upper edge of one of said windows, apair of arms extending upwardly from said base, a shaft `extendingtransversely between said arms, a lock member rotatably mounted at oneend thereof on said shaft, said lock member being mov- 'It'wilL however,prevent the able laterally on said shaft, the other end of said lockmember having a flange, the outer edge of said flange being eccentricwith respect to said shaft, the upper end of one of said arms beingrelieved on the side thereof adjacent the other of said windows, therelieved portion of said arm forming at the upper end thereof a stopportion, a stud carried by said lock member andprojecting Voutwardlytoward the arm having a relieved portion, a coil spring surrounding saidshaft, oneend of said coil spring bearing against one of said arms andtheV -other end of Said coil spring bearing against the portion of saidlock member adjacent said shaft, said coil spring normally urging saidlock member laterally on said shaft toward the arm having a relievedportion, said lock member being rotatable with respect to said shaft tomove the flange thereof into wedging engagement between said shaft andthe other of said Windows, the stud on said lock member beingurged bysaid coil springinto the relieved portion of said arm, so that uponreverse rotation of said lock member said stud Vengages said stopportion to automatically prevent the release of said wedging engagement,said lock lmember being manually movable laterally on said shaft in theopposite direction against the urging of said coil spring to move saidstud around said stop portion to permit the rotation of said lock memberout of wedging engagement with the other of said windows.

3. A window lock `for double hrung windows comprising a base adapted tobe mounted on the upper edge of one of said windows, la pair of armsextending upwardly from said base, a shaft extending transverselybetween said arms, `a lock member rotatably mounted at one end thereofon said shaft adjacent one of said arms, said lock member being movablelaterally on said shaft the other end ofV said lock member having aflange, the outer edge of said ilangebeing eccentric with respect tosaid shaft, said lock member being rotatable with respect to saidshaft'to move'the flange thereof into wedging engagement between saidshaft andV the other of said windows, stop means engageable between saidlock member and the adjacent arm to prevent rotation of said lock memberout of wedging engagement with said Window, a coil spring surroundingsaid shaft, one end of said coil spring bearing Vagainst the other'ofsaid arms and the other end of said coil spring bearing against theportion of said lock member adjacentsaid shaft, said coil spring urgingsaid lock member llaterally -on said shaft toward the `adjacent larminto a position whereby said lock member upon Vreverse rotation thereofengages said stop meansfsaid lockV member being manually movablelaterally ongsaid shaft inthe opposite direction against the urgingofsaid coil spring to disengage said stop means to permit the rotation ofsaid lock` member out of wedging engagement with theother of `saidwindows. Y v Y Y 4. A window lock for double hung windows comprising abase adapted to be mounted 4on the upper edge of lone Vof said windows,a lock member Vrotatably mounted at one end thereof with respect tosaid-base, the other end of said lock member having a flange, the outeredge of said flange being eccentric with respect to the axis ofrotationof said lock member, said lock member being rotatable tomove theilange thereof linto wedging engagement between said base andthe otherof said4 windows, stop means engageable between said; lock member andbase to prevent the reverse rotation of said ange out of wedgingengagement with said window,V and la coil spring engaging saidlockrmember, said coil spring upon the-rotation of said ange intoengagement with said window automatically moving'said lock member into aposition for engaging said stop means, said lockmember being manuallymovableeagainst the urgingY of said coil spring to permit the rotationof said lock member out of wedging engagement with said window.

5. A window lock for double hung windows comprising a base adapted to bemounted on the upper edge of one of said windows, a lock memberrotatably mounted at one end thereof with respect to said base, theother end of said lock member having a ange, the outer edge of saidilange being eccentric with respect to the axis of rotation of said lockmember, said lock member being rotatable to move the flange thereof intowedging engagement between said base and the other of said windows, stopmeans engageable between said lock member and base to prevent thereverse rotation of said flange out of wedging engagement with saidwindow, and a coil spring engaging said lock member, said coil springupon the rotation of said ange into engagement with said windowautomatically moving said lock member into a position for engaging saidstop means, said lock member being manually movable against the urgingof said coil spring to permit the rotation of said lock member out ofwedging engagement with said window.

6. A window lock for double hung windows comprising a base adapted to bemounted on the upper edge of one of said windows, a lock memberrotatably mounted at one end thereof on a ixed axis with respect to saidbase, said lock member being movable laterally on said axis, said lockmember being rotatable into wedging engagement between said base and theother of said windows, stop means engageable between said lock memberand said base to prevent rotation of said lock member out of wedgingengagement with said window, a coil spring engaging said lock member,said coil spring upon the movement of said lock member into wedgingengagement with said window automatically moving said lock memberlaterally on said axis into a position whereby-said lock member uponreverse rotation thereof engages said stop means, said lock member beingmanually movable laterally on said axis in the opposite directionagainst the urging of said coil spring to permit the rotation of saidlock member out of wedging engagement with said window.

7. A window lock for double hung windows adapted to be mounted on theupper edge of one of said Windows, a lock member mounted for rotationinto wedging engagement with the other of said windows, stop means forpreventing rotation of said lock member out of said wedging engagement,resilient means engaging said lock member, said resilient means upon therotation of said lock member into wedging engagement with said windowautomatically moving said lock member into a position for engaging saidstop means, said lock member being manually movable against the urgingo-f said resilient means to permit the rotation of said lock member outof wedging engagement with said window.

8. A window lock -for double hung windows adapted to be mounted on theupper edge of one of said windows, a lock member mounted for rotationinto wedging engagement with the other of said windows, stop means forpreventing rotation of said lock member out of said wedging engagement,`and resilient means engaging said lock member, said resilient meansupon the rotation of said lock member into wedging engagement with saidwindow automatically moving said lock member into a position forengaging said stop means, said lock member being manually releasablefrom said stop means to permit the reverse rotation of said lock memberout of wedging engagement with said window.

References Cited in the ijle of this patent UNITED STATES PATENTS1,164,724 Kilmer Dec. 2l, 1915 1,202,941 Wilcox Oct. 31, 1916 1,221,799Holtzman Apr. 3, 1917 '1,412,154 Wollesen Apr. 11, 1922 1,584,581 Wilsonet al. May 1l, 1926 1,841,890 Hannon Jan. 19, 1932 1,918,114 LorenzenJuly 11, 1933

